The thesis is focused on the evaluation of vegetation composition and on determining the effects of its regulation on the composition of vegetation. The significance of vegetation for photovoltaic power plant and ecosystem was also evalusted. It is followed by the recommendations of vegetation control for photovoltaic power plants. The research was conducted between the years 2013 - 2015. Sixty five species were found. As species potentially dangerous for the operation of the photovoltaic power plant were identified Festuca rubra, Dactylis glomerata, Cirsium arvense, Apera spica-venti, Trifolium pratense, Chenopodium album, Salix alba, Salix cinerea, Antryscus sylvestris and Urtica dioica. As species potentially dangerous for the ecosystem were determined Dactylis glomerata, Cirsium arvense, Chenopodium album. As species that can have a positive impact on the power plant were determined Festuca rubra, Trifolium repens and Tirofolium pratense. As species with a positive impact on the ecosystem were determined Taraxacum sect. ruderalia, Trifolium repens, Tirofolium pratense and Lamium album. Mulching was determined as the appropriate type of vegetation control. It was recommended to replace the use of herbicides with mowing or reduce the frequency of herbicide application to once in two years.

The thesis deals with the diversity of weed vegetation and a fixation the presence of expansive species on chosen part of railway between Brno-main station and Řečkovice station. The observing of vegetation was made on railway embankment, around the railway embankment and between rails. Locations have been observing in July and August 2011 and 2014. The observation results were statistically evaluated by DCA and CCA analysis. On the chosen part was found 50 species of plants in total. The most coverage had Urtica dioica L., Solidago canadensis L., Artemisia vulgaris L. The most common species between the rails were: Euphorbia cyparissias L., Artemisia vulgaris L, Achillea millefolium L. On the railway embankment were the most common these species: Lolium perenne L., Plantago major L., Artemisia vulgaris L. Around the railway embankment were the most commons species: Urtica dioica L., Solidago canadensis L., Artemisia vulgaris L. Key words:

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The major factor for permitting different gold mining leases and enhancing the mining industry in Ghana was to pull in more assets in the nation to enhance the financial fortunes and to lessen the disturbing rate of joblessness. Despite the positive commitment of mining to the nation's economy, there are negative impacts on the ecosystems particularly at the various mining territories in the country. The aim of this study is to evaluate and compare how mining activities in Obuasi municipality and Czech Republic influences the zone's ecosystem and to discover more logical measures to limit such impacts. The quantitative method of data analysis was used in this study through the mean and standard deviation methods while data analyzed were presented using statistical tools such as tables and percentages. The results obtained revealed that mining activities affect all aspects of the ecosystem including water quality, vegetation, soil, landscape as a whole, as well as socio-economic life of the inhabitants within and around the mining communities.

The aim of this diploma thesis was to assess an influence of game on woody and herbal vegetation in Loučná nad Desnou game preserve. Monitoring was realized in 2014 on 14 monitoring areas according to ČERMÁK, MRKVA (2003) methodics. Total number 3491 individuals of six species were determined in monitoring areas. The most common was European beech Fagus sylvatica, sycamore maple Acer pseudoplatanus and Norway spruce Picea abies. There was also European ash Fraxinus excelsior, small-leaved lime Tilia cordata and silver birch Betula pendula. The most damaged species in natural regeneration was European ash, sycamore maple and small-leaved lime. The influence of game on herbal vegetation was evaluated on the pair organized vegetation reports along the game preserve plot, where the influece of game was visually evident in absence of shrub layer. There was not visible any obvious influence of herbal vegetation on all vegetation reports due to the game.

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Angl. resumé

This diploma thesis deals with the issue of road vegetation which is more and more discussed nowadays. The literary research of the diploma thesis offers brief history of planting along roads and summarizes its importance and legislation. Furthermore, it focuses on the choice of woody plants based on environmental conditions, ways of planting, growing and subsequent care. The thesis also documents a condition of vegetation in the chosen section of the road I/37 between Krucemburk and Ždírec nad Doubravou, describes the process of felling and suggests alternative solutions of vegetation restoration including the budget. Finally, the thesis analyzes and explains attitudes of the parties dealing with this issue.